他们发现，太阳和其他恒星的运行原理是一样的：星系中所有恒星的活跃度都完全决定于它们的光度和自转。 The previous text is in Chinese (Simplified). Here is a translation to Swahili:
Walipata kuwa Jua lilifanya kazi kwa kanuni msingi sawa na za nyota nyingine: Shuguli za nyota zote kwenye mfumo zilipatikana kuendeshwa na mng'ao wao, mzunguko wao na hakuna jingine.